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Forged and Cast Rolls DESCRIPTION APPLICATIONS Product Type of Mill Position Plate 2,3and 4 High Roughing/Finishing Wide Strip 4 High Continuous Finishing Wide Strip 4 High Reversing Roughing/Finishing Cold Reduced Strip 4 High Continuous Work Rolls Sheet and Coil 2 High Skin Pass Work Rolls Sheet and Coil 4 High Temper Back Up Rolls DEPTH ...
Forged and Cast Rolls DESCRIPTION APPLICATIONS Product Type of Mill Position Plate 2,3and 4 High Roughing/Finishing Wide Strip 4 High Continuous Finishing Wide Strip 4 High Reversing Roughing/Finishing Cold Reduced Strip 4 High Continuous Work Rolls Sheet and Coil 2 High Skin Pass Work Rolls Sheet and Coil 4 High Temper Back Up Rolls DEPTH OF HARDNESS
Features. 1. Configurable work roll bending roller device, 2. The whole machine structure is simple, easy maintenance operation, less investment. 3. Screw down has two kinds control method, ordinary electromechanical screw down and AGC hydraulic screw down. AGC 4-hi rolling mill control accuracy, especially suitable for high precision cold ...
WORK ROLLS ROLL DIAMETER (INCHES) 42 Inches (1,066.800 mm) BEARING TYPE Roller . DRIVE MOTOR HORSEPOWER 1,500 HP (1,119.000 kw) RPM 196 Rpm . CURRENT DC . ROUGHING MILL 1 MILL TYPE 4 High . DRIVEN Work rolls . SCREWDOWN EXISTS Yes . COMPLETE Yes . SCREWDOWN T
Wide Strip 4 High Continuous Finishing Wide Strip 4 High Reversing Roughing/Finishing Cold Reduced Strip 4 High Continuous Work Rolls Sheet and Coil 2 High Skin Pass Work Rolls Sheet and Coil 4 High Temper Back Up Rolls DEPTH OF HARDNESS Surface Discard H C 90 85 80 75 70 65 60 55 50 45 40 35 30 25 AIM CHEMISTRY (WT%) Code Leeb E Shore C C Si ...
Table 1 summarizes the main mill and product specifications, and Figure 1 shows the general line layout. MILL EQUIPMENT. The line consists of a 4-high reversing roughing mill (R2) equipped with hydraulic gap control and a vertical edger at the entry side (Figure 2).
X-Roll program offers the right cold mill for you. Ideal for an annual production of 100,000 to 500,000 t are our single-stand reversing mills (RCM). Depending on your product spectrum, they come in four-high or six-high design with CVC plus. What makes single-stand reversing mills stand out
The four-high reversing roughing stand rolls the slab down to the transfer-bar thickness calculated by the pass-schedule model, in ve to seven passes. The roughing stand has hydraulic roll-gap adjustment sys-tems and a maximum roll force of 45 MN. The transfer bar width is preset by means of the edger which is anged at the entry side.
G. Engberg, L. Karlsson, in Fundamentals of Metallurgy, 2005 11.5.1 Hot rolling. Mill data from the hot strip mill has been used to calculate the mean flow stress in each pass, assuming the material to be elastic ideally plastic. The roll force model used was a classical slab method with constant friction assumed in the roll gap. For the roughing mill (reversible 4-high) both roll force ...
In general, non-reversing 4-HI mills are used as aluminum foil mills which comprise a roughing mill, an intermediate rolling mill, and a finishing mill, according to the intended thickness and production amount (rolling time) of the foils. In some cases, in order to minimize initial
Two alloys grades for work rolls used in the roughing stand of Hot Strip Mill high chromium steel (HCS) and semi-high-speed steel (semi-HSS), In this paper, the new semi-high-speed steel grade ...
Sep 30, 2020 2. Three High Rolling Mills. It consists of three rolls positioned directly over one another as shown in the figure below. The direction of rotation of the first and second rolls are opposite as in the case of two high mills. The direction of rotation (path) of second and third rolls is always opposite to each other.
The hot rolling line is 320 meters long, which main equipment consists of two Main Function and Features, one reversing roughing mill, one coil box and one 4-high 6 stand finishing mill. Its annual designed production capacity is 2.4 million tons, which may produce all kinds of hot
6. Two-high reversing roughing mill with DC motor 7. Roller table with dc motors in front of the finishing mill 8. Roller table with dc motors behind of the finishing mill 9. Vertical edging stand with DC motor 10. Five finishing stands (quarto type 4-Hi type) Backup rolls 11. Centering devices 12. Edging stand screw downs assembly 13 ...
TDI Group, LLC .P.O. Box 38657 .Pittsburgh, PA 15238-8657 . Tel 412.826.4950 . Fax 412.826.4959 .http//www.tdigrp.com MATERIAL PROCESSED Steel, Strip
Hot Rolling Mill complex is equipped with walking beam reheating furnace, primary descaler, 4-hi reversing roughing mill, 4-high reversing Steckel Mill, down coiler, laminar cooling roll grinding machines, procured from world renowned suppliers.
For the roughing mill (reversible 4-high) both roll force and roll torque were available so the friction coefficient could be evaluated in addition to the flow stress for each pass. The values were close to 0.3 so it was decided to use this for all calculations, also for the finishing, six-stand (4-high), tandem mill.
The slabs then moved onto the completely automated 4-high Reversing Roughing Mill. The slabs moved back and forth a number of times reducing the thickness of the slab to around one inch and lengthening it to about 200ft. This then passed to the 6-stand 4-high Finishing Mill, where the metal was further reduced.
Configurations. Mills are designed in different types of configurations, with the most basic being a two-high non-reversing, which means there are two rolls that only turn in one direction.The two-high reversing mill has rolls that can rotate in both directions, but the disadvantage is that the rolls must be stopped, reversed, and then brought back up to rolling speed between each pass.
Nov 15, 2018 The shop includes furnaces, 2800 plate mill, and heat-treatment and finishing sections. The 2800 mill consists of a horizontal reversing two-high stand and a reversing four-high stand. The mill is intended to roll sheets of 850 mm thickness, 15002500 mm width, and 18 m length. The mill production output is 1.25 million tons a year.
Reversing Cold Mills (RCM), consisting of a rolling stand, are the ideal plant type for an annual production in the range of 100,000 to 500,000 tons. They can roll a wide range of steel grades. Reversing cold mills are also a good solution for demanding silicon or stainless steels. We offer you the right type of
Quarter-section of a 4-high mill stand with axial work roll shifting ... leaflet are without any obligation and raise no liabilities to or form part of any sales contracts of ANDRITZ AG. ... One single-stand 4-high reversing roughing mill ... Tandem Cold Rolling Mill 1. Read more.
Application For hot strip mill, two-high reversing stands of plate mill, Roughing mill, billet rolling mill, section mill, barmill and roughing stands of high-speed wire-rod mill. 3. Our Factory. LONSUN is trusted leader with an exceptional quality, specialized in pipe making mill, rolling mill and machine parts etc.
It is used in slabbing, plumbing, rail, plate roughing work and many other areas. As there is the need for a reversible drive, this mill is cheaper compared to the others. Two High Non-Reversing Mills In these mills, two rolls continuously revolve in the same direction and we cant reverse the direction of the rollers.
Mills - 4-HI. Tandem Cold Mills. Cold rolling is accomplished by processing steel strip through a series of Tandem Rolling Mill Stands.. Each stand has vertically assembled rolls that are powered by large motors to transmit high compressive pressures into the material. Hot
4-High Three-Stand Continuous Rolling Mill A1. 4-High Three-Stand Continuous Rolling Mill A1 specifications features from suppliers/manufacturer Specifications1.Product series 450 mill, 550 mill, 650 mill, 800
Primetals Technologies installed and equipped the No. 2 Hot Strip Mill at Usiminas with some of the worlds most advanced hot-rolling technologies. The demand for a high-reduction mill capable of rolling advanced steel grades at thinner gauges and with improved strip crown and shape control was fully met. The mill is characterized by its high ...
110 Roughing Mill Mesta, 1941 Four - Hi Reversing Mill 48 to 52 diameter x 108 Backups 35 to 39 diameter x 110 Work Rolls 5000 HP Single motor drive Operated 7200 HP RMS with active cooling Back Up Roll Chocks - 8 (ie 2 Per Roll, Enough for 2 Top Rolls and 2 Bottom Rolls) Work Roll Chocks - 8 (ie 2 Per Roll, Enough for 2 Top Rolls ...
Dec 10, 2015 These rolls are usually heat treated, the hardness range is 35 -55 deg Shore and they are commonly used as back-up rolls in 4-high rolling mills. An alloy steel containing tungsten (W) and with a hardness of 40 50 deg Shore is very resistant to fire cracking and
INCO design manufacture and installs Rolling mills for Copper and Copper alloys. Four high single stand reversing cold rolling mills for mill finishing process. Strip width up to 1200 mm. Rolling Mills can be designed as roughing/finishing or only finishing depending on the end use. Skin pass mills are also available.
They are generally designed ad 4-high rolling mills. Universal rolling mills for a wide range of foil products differ from special rolling mills, such as the one for the production of 4.5 m condenser foils. Within foil rolling lines they are typically designed as roughing mills, intermediate mills and finishing mills.
Plate Mills Works Nagoya Feb. 1975 Roughing 4-high reversing 4-high reversing 1,200 1,900 4,800 HSBVE4H4H HSB VE 4H 4H HSB VE 4H 4,700 4,724 4,724 5,500 1,830 (with bending roll) 2,000 2,000 2,400 1,020 1,000 1,000 1,200 Mar. 1968 Finishing Roughing 4-high reversing 4-high Finishing reversing 4-high Jan. 1977 reversing Kimitsu Oita Mill ...
Reversing mills Sendzimir mill Z - mill Small diameter work rolls surrounded by larger back-up rolls Coiling stands provide tension Large reductions possible on strong materials Active shape and gauge control Material can be produced as wide as 60 and as thin as 0.0007 (18 microns)
finishing mill 4-high stand, six stand united work roll 25 dia x 56 face (635 mm x 1422 mm) backup roll 49 dia x 56 face (1245 mm x 1422 mm) roll bearing backup - morgoil work - roller roll force system style hydraulic capsule force 2,855 tons (2,590 mt) stand 1 drive
In order to solve the serious backup roll spalling of roughing mill during ultra-wide stainless steel rolling process, a 3D elastic deformation finite element model of 4-high roll stacks was ...
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